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#92964 - 04/21/05 05:22 AM Taps to branch circuits?
George Little Offline

Registered: 01/18/04
Posts: 1492
Loc: Michigan USA
Would it be proper to tap a 20a circuit at each outlet with a short (6 inch) piece of #14 wire to install a duplex 15a receptacle? I seem to remember a discussion on this before but can't find the code reference. Only thing I find is 210.19(A)(4)(c) and it says "No" Comments please.
George Little

2014 / 2011 NEC & Related Books and Study Guides
#92965 - 04/21/05 05:37 AM Re: Taps to branch circuits?
shortcircuit Offline

Registered: 06/27/04
Posts: 608
Loc: massachusetts
240.4(D) restricts #14 to be connected to a 15 amp overcurrent device...

Now, there are exceptions to this rule, but as you pointed out, 210.19(4) exception No. 1(c) spells out the restriction of taps connected to receptacle outlets...


#92966 - 04/21/05 10:09 AM Re: Taps to branch circuits?
gfretwell Offline


Registered: 07/20/04
Posts: 9026
Loc: Estero,Fl,usa
There is an exception for lamp holders and luminaires but I don't think that extends to a receptacle. Receptacles are the reason for 240.4(D) in the first place IMHO. The installer has no control over what a user does so they build the 80% safety factor into the installation.
Greg Fretwell

#92967 - 04/21/05 07:52 PM Re: Taps to branch circuits?
renosteinke Offline
Cat Servant

Registered: 01/22/05
Posts: 5305
Loc: Blue Collar Country
Code is pretty blunt in saying that you can't do this with can put 15 amp receptacles on a 20 amp circuit, but you can't pigtail with #14- even though general tap rules would otherwise allow it.

I, for one, do not understand why code denies this practice. Are they trying to prevent the use of cheap 'back-stab' receptacles on 20 amp circuits? Your guess is as good as anyones'.

#92968 - 06/23/05 06:50 PM Re: Taps to branch circuits?
JimMichaels Offline

Registered: 05/28/04
Posts: 12
It would seem reasonable for a single 15a receptacle ... until a cube tap gets plugged in. A duplex would need dual 15a taps. Hence, NO!

#92969 - 06/24/05 08:58 AM Re: Taps to branch circuits?
gfretwell Offline


Registered: 07/20/04
Posts: 9026
Loc: Estero,Fl,usa
In George's question he implied that all of this tap would be inside a box so the hazard is probably not there but it is still a code violation. If this was simply to pigtail in a receptacle I doubt anyone would ever actually have any problems.
Greg Fretwell


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